I'll throw out a very unpopular opinion - but I think the POrt game might Vardy's last, or perhaps the one after
The lad tries and does some great things, but he got pantsed by an underdone Gawn and Ryder tore him a new arseh*le in the game earlier in the year.
If he can't stand up against quality rucks (i don't mean he has to win, just not be dominated) - then he becomes a major liability
We have the two leading candidates for AA ruck in the next 2 weeks - that IMO will be his litmus test.
The Port game should be a great gauge of his development.